Paddle-wheel



3 Sheets-Sheet, 1.

(No Model. E. L. WILLIAMS.

PADDLE WHEEL. N0. 278,477. I Patented May 29,1883.

E E R 6 i 7 Wz'fnesses; v fn venifow I N. PEIERS. Phow-Lflhngflphor. Washington. D. C

(No Model.) 3 She8tSShBet 2.

7 E. L. WILLIAMS.

- PADDLE WHEEL.

No. 278,477. Patented May 29,1883.

N. PETERS. Pholo-Lnhcgmphar. \Vashmglan. ac.

(No Model.) 3 Sheets-Sheet 3.

E. L. WILLIAMS.

PADDLE WHEEL.

No. 278,477. Patented May 29,1883.

| Q II a! i i5 45 (/U S 7 p Y R E P.

- toothedgrooved ways, and means for control- UNITED STATES PATENT OFFICE.

\ELUAH L. WILLIAMS, on MARIANNA, FLORIDA.

PADDLE-WH EEL.

SPECIFICATION forming part of Letters Patent No. 278,477, dated May 29, 1883. Application filed November 29, 1882. (1S0 model.) 7

'To all whom it may concern about equal to the distance between the inner edges of two diametrically-arranged paddles, and divided into four circumferential toothed grooved ways, in combination with two ratchet-pawls adaptedtooperate within two of. said toothed grooved ways, and two pushing-arms adapted to operatewithin the other two of said ling the operation of said pawls andlarms to reverse the motion of the propeller. The pulling-pawls and pushing-arms are connected in pairs to pins arranged upon the opposite faces of a balance-wheel operatinglike a double crank and driven from a gear-wheel on the shaft of an engine. The construction is comparatively cheap, and the arrangement andoperation of the propelling devices allow the propeller to be adjusted up or down to suit the load of the boat, which is important on shallow rivers.

Referring to the accompanying drawings, Figure 1 represents a vertical section of a stern paddle-wheel propeller, the operating pawls beingshown in action to carry the boat forward; Fig. 2, a similar section, showing operatingarms, being shown in action to carry the boat backward; and Fig. 3, a top view of the propeller and its operating devices. The paddle-wheel is arranged at the stern of the boat, a portion ot' the main deck of which may be indicated by theletter A. The shaft (1... of the propeller is mounted in timbers b b, proj ectingrearward beyond the stern from each side of the boat. These propeller-carrying timbers are hinged at their rear ends to the boat a suitable distance back of the stern, and these timbers are secured at or near the stern by vertical. adjusting screw-bolts c c, or any other suitable means by which the propeller can be raised and lowered,according as the boat may be more or less loaded. usual armed paddle-wheel blades,- d (1, is of a length about equal tothe Width of the boat, and is divided in the middle of its length by a The propeller has the u solid cylindridrical bodyor rim, B, wide enough to be formed with four circumferential toothed grooved ways, a 0, side by side. The teeth f of paddlewheel for propelling'the boat forward.

The teeth fof the other two grooved ways 0 are, in fact, abutments, and-are formed by eccentric grooves f so as to receive the pushing action of a1ternately-reciprocating arms D D to revolve the paddle-wheel for propelling the boat backward. The distance between the teeth and abutrnents is a little less than the stroke of the pawls and arms to insure their action at every stroke. Theteeth and the abutments are faced with iron or other suitable material, and the operating pawls and arms are of'iron, and of sufficient Weight to retain their operative relation to their respective grooves when in use. The pulling-pawls and the pushing-arms operate through suitable guides or slots in the stern of the boat, by which they are kept in line with the toothed grooved ways of the paddlewheel. They are connected with crank-pins gg, arranged upon the opposite sides of balance-wheels E, so that the pawls or the arms, whichever may be in use, are operated alternately. These balance-wheels are suitbly mounted upon the deck, and are driven by a gear-wheel, F, meshing-with a gear, F, on the. shaft of an engine, preferably of an upright-boiler form, also placed upon the deck, and which E may represent.

As the pulling-pawls and the pushing-arms cannot operate at the same time, I provide is turned to raise thepawls it will by the same a turning lower the pushing-arms. Each pawl and arm is connectedto this drum by a link, h, and cord i, the latter winding to raise the pawlsand unwindingtolower thearms. These links are preferably formed of two-sections, h h, the lower one,h, being connected to the stern of the boat and extending out, so as to form a rest or support, at, at its link-connecting end for the pawl or arm to raise and carry the actingends of'thepa-wls clear of the toothed grooved ways in their forward stroke, and let them down into the toothed grooved ways atv the end of such stroke, so as to catch into the teeth and act on their rearward movement; The acting ends of the pushing-arms are by their links also raised and carried clear of the grooved ways of the propeller on their rearward stroke and lowered into action at the end of such stroke, so as to push on their forward stroke. By this construction for the operatin g devices the propeller is relieved of the friction of the pawls ,and arms on their non-operating strokes. c

I claim- 1. The combination, with the paddle-wheels and thecircumferentially-toothed groovedways arranged between the said wheels, of the alternately-operatingpullingratchet-pawls O G and the alternately-operating pushing-arms D D, with means, substantially such as described, whereby the operation of said pawls and arms are controlled to reverse the motion ofthe propeller.

2. In a propeller for flat-boats,the combination, with the paddle-wheels and the circumferentially-toothed grooved ways arranged between them, of the alternately-operating pulling ratchet-pawls O G, the alternately-operat ing pushing-arms D D, the pivoted link-rests h h, the drum I, and means, substantially such as described, whereby said drum and its connected link-rests are operated to raise said pawls out of action and to lower said arms into action, for the purpose specified.

In testimony whereof Ihave hereunto setm'y hand in the presence of two subscribing witnesses.

ELIJAH. L. WILLIAMS. 

